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dc.contributor.authorRyan Jr., R.E.
dc.contributor.authorMcCarthy, P.J.
dc.contributor.authorCohen, S.H.
dc.contributor.authorRutkowski, M.J.
dc.contributor.authorMechtley, M.R.
dc.contributor.authorWindhorst, R.A.
dc.contributor.authorYan, H.
dc.contributor.authorHathi, N.P.
dc.contributor.authorKoekemoer, A. M.
dc.contributor.authorBond, H.E.
dc.contributor.authorBushouse, H.
dc.contributor.authorMacKenty, J.
dc.contributor.authorMutchler, M.
dc.contributor.authorWhitmore, B.C.
dc.contributor.authorO'Connell, R.W.
dc.contributor.authorBalick, B.
dc.contributor.authorCalzetti, D.
dc.contributor.authorCrockett, R.M.
dc.contributor.authorKaviraj, S.
dc.contributor.authorSilk, J.I.
dc.contributor.authorDisney, M.
dc.contributor.authorDopita, M.A.
dc.contributor.authorFrogel, J.A.
dc.contributor.authorHall, D.N.B.
dc.contributor.authorHoltzman, J. A.
dc.contributor.authorKimble, R.A.
dc.contributor.authorParesce, F.
dc.contributor.authorSaha, A.
dc.contributor.authorTrauger, J.
dc.contributor.authorWalker, A.R.
dc.contributor.authorYoung, E.
dc.date.accessioned2013-10-30T16:00:58Z
dc.date.available2013-10-30T16:00:58Z
dc.date.issued2012-04-10
dc.identifier.citationRyan Jr. , R E , McCarthy , P J , Cohen , S H , Rutkowski , M J , Mechtley , M R , Windhorst , R A , Yan , H , Hathi , N P , Koekemoer , A M , Bond , H E , Bushouse , H , MacKenty , J , Mutchler , M , Whitmore , B C , O'Connell , R W , Balick , B , Calzetti , D , Crockett , R M , Kaviraj , S , Silk , J I , Disney , M , Dopita , M A , Frogel , J A , Hall , D N B , Holtzman , J A , Kimble , R A , Paresce , F , Saha , A , Trauger , J , Walker , A R & Young , E 2012 , ' The size evolution of passive galaxies : observations from the Wide-Field Camera 3 Early Release Science program ' , The Astrophysical Journal , vol. 749 , no. 1 , 53 . https://doi.org/10.1088/0004-637X/749/1/53
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 2066893
dc.identifier.otherPURE UUID: 63b78946-4793-4ab8-9856-9e745b4a4a7f
dc.identifier.otherScopus: 84858959627
dc.identifier.urihttp://hdl.handle.net/2299/11935
dc.description.abstractWe present the size evolution of passively evolving galaxies at z 2 identified in Wide-Field Camera 3 imaging from the Early Release Science program. Our sample was constructed using an analog to the passive BzK galaxy selection criterion, which isolates galaxies with little or no ongoing star formation at z ≳ 1.5. We identify 30 galaxies in 40arcmin to H <25mag. By fitting the 10-band Hubble Space Telescope photometry from 0.22 μm ≲ λ ≲ 1.6 μm with stellar population synthesis models, we simultaneously determine photometric redshift, stellar mass, and a bevy of other population parameters. Based on the six galaxies with published spectroscopic redshifts, we estimate a typical redshift uncertainty of 0.033(1 + z). We determine effective radii from Sérsic profile fits to the H-band image using an empirical point-spread function. By supplementing our data with published samples, we propose a mass-dependent size evolution model for passively evolving galaxies, where the most massive galaxies (M 10 M) undergo the strongest evolution from z 2 to the present. Parameterizing the size evolution as (1 + z) , we find a tentative scaling of α (- 0.6 0.7) + (0.9 0.4)log (M /10 M), where the relatively large uncertainties reflect the poor sampling in stellar mass due to the low numbers of high-redshift systems. We discuss the implications of this result for the redshift evolution of the M -R relation for red galaxies.en
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.titleThe size evolution of passive galaxies : observations from the Wide-Field Camera 3 Early Release Science programen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84858959627&partnerID=8YFLogxK
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1088/0004-637X/749/1/53
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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